Materials Literature
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A nonlinear optical crystal cadmium fluoroborate (Cd5(BO3)3F) has been synthesized through high-temperature solid-state reactions. In the crystal structure, CdOnFm (n = 4, 5, 7; m = 0, 1, 2) distorted polyhedra interconnect via shared edges and corners to form a 3D framework with tunnels along the c axis. BO3 planar t…
A europium(III) DOTA-tetraamide complex was designed as a MRI sensor of singlet oxygen ((1)O2). The water soluble, thermodynamically stable complex reacts rapidly with (1)O2 to form an endoperoxide derivative that results in an ∼3 ppm shift in the position of the Eu(III)-bound water chemical exchange saturation transf…
Preface Perovskite-Based Catalysts for Transformation of Natural Gas & Oxygenates into Syngas Bi Containing Multiferroic Perovskite Oxide Thin Films Perovskites as Catalysts for Environmental Remediation Microwave-Assisted Synthesis & Characterization of Perovskite Oxides Defect Structure & Defect-induced Expansion of…
This study presents the fabrication and investigation of humidity sensors based on orange dye (OD) and polyaniline (PANI) composite films. A blend of 3 wt.% OD with 1 wt.% PANI was prepared in 1 ml water. The composite films were deposited on glass substrates between pre-deposited silver electrodes. The gap between th…
Silks are defined as protein polymers that are spun into fibers by some lepidoptera larvae such as silkworms, spiders, scorpions, mites, and flies. Silk proteins are usually produced within specialized glands in these animals after biosynthesis in epithelial cells that line the glands, followed by secretion into the l…
Metamaterials have attracted a great deal of attention due to their intriguing properties, as well as the large potential applications for designing functional devices. In this paper, we review the current status of metamaterial sensors, with an emphasis on the evanescent wave amplification and the accompanying local…
Water famously expands upon freezing, foreshadowed by a negative coefficient of expansion of the liquid at temperatures close to its freezing temperature. These behaviors, and many others, reflect the energetic preference for local tetrahedral arrangements of water molecules and entropic effects that oppose it. Here,…
In recent years, nanoparticles have received increasing attention in research and technology, including a variety of practical applications. The bioactivity appears to be related to the small particle size, in addition to inherent chemical activity as electron transfer (ET) agents, generators of reactive oxygen specie…
Graphene oxide decorated with an electron donor, zinc(II) phthalocyanine, and an electron acceptor, fullerene, has been synthesized, and photoinduced electron transfer leading to charge-separation is reported.
A nano-sized Magnesia–Zirconia (nano-MgO–ZrO2) catalyst was prepared by a simple ultradilution co-precipitation method and by using inexpensive precursors. The nano-MgO–ZrO2 was extensively characterized by SIMS together with other analytical techniques such as X-ray diffraction (XRD) and transmission electron microsc…
Versatile synthetic procedures enable the incorporation of bistable molecular machines (rotaxane-type and catenane-type) into supramolecular polymeric scaffolds with the aim of mimicking nature and developing functional nanomachinery so as to obtain macroscopic changes in material properties by transforming motions at…
Bending manipulation and direct force measurements of ultrathin boron nitride nanotubes (BNNTs) were performed inside a transmission electron microscope. Our results demonstrate an obvious transition in mechanics of BNNTs when the external diameters of nanotubes are in the range of 10 nm or less. During in situ transm…
Due to the strong interaction between PCBM and triphenylamine, PCBM could be well distributed into poly-4-methoxytriphenylamine (P-TPA). The resulting hybrid films exhibited DRAM behavior at low PCBM concentrations, while they revealed WORM property at higher, 5 wt% and even up to 10 wt%, PCBM concentrations.
For the first time, the method of shell-isolated nanoparticle Raman spectroscopy (SHINERS) is used in combination with cyclic voltammetry (CV) and reactivity studies to investigate the adsorption behaviour of a series of three alkynes undergoing hydrogenation on nanoparticle, single crystal and bacteria/graphite-suppo…
Novel silica–alumina/sepiolite nanoarchitectures have been prepared by an original approach based on sol–gel procedures. A commercial organo-sepiolite is used as a starting material whose organocations are provided by alkylchains that contribute to the controlled hydrolysis and polycondensation of silicon and aluminiu…
Polyethylene Glycol‐ (PEG‐) coated gold nanoparticles (PEG‐AuNPs) are synthesized by a one‐step route with rapid microwave heating. Homogeneous nucleation of the primary gold particles is enhanced by increasing the applied microwave power during the initial stage of the synthesis, increasing the temperature ramping ra…
Fluorescence excitation enhancement by plasmonic nanostructures such as gold nanohole arrays has been a hot topic in biosensing and bioimaging in recent years. However, the high throughput and high yield fabrication of precisely designed metal nanostructures for optimized fluorescence excitation remains a challenge. O…
Many biomaterial scaffolds have been developed for use in tissue engineering usually for populating with a single cell-type. In this study we demonstrate the production of bilayer and trilayer nanofibrous/microfibrous biodegradable scaffolds suitable for the support, proliferation and yet segregation of different tiss…
Background and aims. Incorporation of nano-particles to orthodontic bonding systems has been considered to prevent enamel demineralization around appliances. This study investigated cytotoxicity of Transbond XT adhesive containing 1 wt% titanium dioxide (TiO2) nano-particles. Materials and methods. Ten composite disks…
We investigate the mechanical properties and instabilities of ordered honeycomb monolayer structures of graphene oxide C6O under various large strains using density functional theory. We found that the in-plane Young's modulus and intrinsic strengths are reduced by the oxidation of graphene with only the epoxy groups…